Draft-arm for railway-cars.



H. l. WRIGLE Y.

DRAFT ARM FOR RAILWAY CARS.

APPLICATION FILED SEPT. 15, 1914- 1,208,881. Patented De0.19,1916.

2 SHEETS-5HEET 1- H. I. WRIGLEX.

DRAFT ARM FOR RAILWAY CARS.

APPLICATION FILED SEPT. I5. I9I4.

1,208,881. Patented Dec.19,1916.

2 SHETSSHEET 2.

I l l CE 3 n I v I IW \IHII HENRY I. WRIGLEY, OF CHICAGO, ILLINOIS,

i" FIQE,

ASSIGNOR TO UNIVERSAL DRAFT GEAR ATTACHMENT CO., A CORPORATION OF ILLINOIS.

DRAFT-ARM FOR RAILWAY-CARS.

Specification of Letters Patent.

Patented Dec. 19, 1916.

Application filed September 15, 1914. Serial No. 861,798.

' To all whom it may concern Be it known that I, HENRY I. WRIGLEY, a citizen of the United States, and resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvementsin Draft-Arms for Railway- Cars, of which the following is a specification and which are illustrated in the accom panying drawings, forming a part thereof.

he invention relates to draft arms for railway cars, such arms being adapted to be attached to the sills of the car and constituting the means by which the draft and bufling stresses are communicated thereto, and alsoserving the purpose of strengthening the car sills.

The object of the present invention is to secure increased strength particularly in that portion of the arm which is in line with the car bolster. r

The invention is fully hereinafter described and is illustrated in the accompanying drawings in which,

Figure 1 is a detail central longitudinal sectional view of a railway car showing the draft arm in elevation; Fig. 2 is a detail plan section of the same taken in part above one of the center sills and in part on aplane through the bolster; Fig. 3 is a detail in perspective of a portion of the draft arm located within the bolster; Fig. 4 is a detail in perspective of a modified construction of a reinforcing plate used on the draft arm; Fig. 5 is a detail central vertical section of the car through the bolster showing a modified form of construction of the draft arm; Fig. 6 is a plan view of the parts shown in Fig. 5 with the center sill removed; Fig. 7 is a transverse section on the line 7-7 of Fig. 5, and Fig. 8 is a view in perspective of the draft arm reinforcing member showing a modification.

In the drawings one of the center sills of a car is shown at 10 and its end sill at 11. Draft arms, generally designated by the nu merals 12, 13 are applied and secured to the lower faces of the'center sills, (only one of which appears in the drawings). As illustrated, the draft arm is designed for use in connection with the Cardwell type of draft gear but may be designed for use in connection with the draft gears of any standard form of construction. The usual tie plates, as 14, 15, 16, are shown for connecting the two draft arms and these may be applied as illustrated, or in any desired manner and form no part of the present invention. The draft arm extends through the car bolster which is shown as comprising upper and lower plates 17, 18, and a filler plate 19 above the plate 18. Shoulders 20 and 21 are formed at the top and bottom of the draft arm, and abut against the forward edges of the bolster. A shoulder 22 formed across the top of the draft arm engages the rear edge of the upper plate of the bolster and a tie plate 23 secured to the lower faces of the two draft arms is provided with a down turned lip 24, at its forward edge bearing against the lower member 18 ofthe bolster. Therear end of the draft arm abuts against the end of a sub sill 25, one of which is located immediately below each of the center sills. A reinforcing member 26 is applied to the upper face of each of the draft arms and spans the bolster. In the preferred form of construction, as illustrated in Figs. 1 and 2, this reinforcing member takes the form of a plate slightly wider than the sill 10 and hav-- ing at each of its side margins an upstanding flange 27, 28, these flanges fitting snugly against the sides of the sill. Across the lower face of the member 26 and adjacent each end thereof, there is a transverse rib 29, 30, the inner face of each of these ribs being undercut, as shown at 31, 32. The draft arm is provided with complementary channels across its upper face for receiving the ribs 29, 30. In assembling the parts the draft arm may be inserted through the bolster between the center sills. The member 26 having been applied to the sill, the draft arm may now be raised and moved laterally into place, the ribs 29, 30 entering the channels across its upper face. After both draft arms are properly located, the filler plate 19 is inserted and suitably secured.

As shown in Fig. 8, the reinforcing member 26 my be provided with a single upstanding marginal flange, as 28; or, as shown in Fig. 4, it may be entirely devoid of marginal flanges. When either of these forms of construction is followed, the member 26 may be inserted after the draft arm has been properly located under the sill.

In the construction illustrated in Figs. 5 to 7, the reinforcing member 26 takes the form of an I-shaped plate having a body portion 33, of less width than the sill and draft arm, and lateral projections 34, 35 and 3c, 37 ing provided with upstanding bosses 38, 39 and iO, il, spaced apart to receivethe body portion 38 of the plate and to engage the inner edges of its lateral projections. The reinforcing member 26 may be secured to the draft arm by bolts, as indicated in Figs. 5 to 7 or may be bolted to the sill and bolster, as indicated in Figsll, 2, f and 8.

Buffing stresses tend to break sill upwardly such fracture occurs in destructive tests. It is one function of a draft arm, and particularly of that type whichextends beyond the bolster,'to reinforce the sill at this point, and the present invention substantially increases its efficiency in this regard by the application the center thereto of the reinforcing member 26 in any,

of the forms illustrated.

I claim as my invention,

1'. In a draft arm, in combination, a body portion adapted to extend beyond the bolster'of a car, and a reinforcing member applied to the top of the body portion and adapted to bear against the bottom face of a sill, such elements having transverse engaging shoulders.

2. In a draft arm, in combination, a body portion adapted to extend through a bolster, and a reinforcing member applied to the top of the body portion and adapted to span the bolster and to bear against the bot tom face of a sill, such elements having transverse engaging shoulders at opposite sides of the bolster.

3. In a draft arm, in combination, a body portion having transverse channels in its upper face, and a reinforcing member applied to the upper faceof the body portion and adapted to bear against the bottom face of a sill and having transverse ribs entering the channels.

l. In a draft arm, in combination, a body portion having transverse channels in its upper face, and a reinforcing member applied to the upper face of the body portion and having transverse ribs entering the channels, such channels and ribs being interengaged with a dove-tail. formation.

5. In a draft arm, in combinatiom'a body portion adapted to extend beyond the bolster of a car, and a reinforcing member'applied to the top of the body portion and having an upstanding marginal flange, such elements having transverse engaging shoul-V ,ders and being adapted to bear against the bottom and a side face of a sill. V

6. In a draft arm, in combination, a body portion 'and a reinforcing member applied to the top of the body portion and'having upstanding marginal flanges, such elements having transverse engaging shoulders and being adapted to bear against the bottom and side faces of a sill.

7. In a draft arm, in combination,

adjacent each end, the draft arm be H and having transverse in line With the bolster and V a body portion, having transverse channels in its upper face, and a reinforcing member applied to the upper faceof'the body portion ribs entering the channels, and an upstanding marginal flange and being adapted to bear against the bottom and a side face of a sill.

S. In a draft arm, in combination, a body portion having transverse channels in its upper face, and a reinforcing member applied to the upper face of the body portion and having transverse ribs enteringthe channels, and upstanding marginal flanges and being adapted 'tobea'r against the botton and side faces of a sill. v

9. Ina d "aft arm, in combination, a body portion having transverse channels in its upper "ace, and a reinforcing member 'ap plied to the upper face of thebody portion and having transverse ribs entering the channels, suchchannels and ribs being interengaged with a dove-tail formation, and

an upstanding marginal flange.

her detachably secured to the top of the body portion at both sides of the bolster line and being adapted to bear against the bottom face of a sill. V

12. In a draft arm, in combination, a body portion adapted to extend through a 10 bolster, and a reinforcing member, detachably secured to the top of the'body portion ancladapted to span the bolster and to bear. against the bottom face of a sill.

13/1311 a draft arm, in combination, a body portion adapted to extend on both sides of a'car' bolster, a reinforcing member detachably secured to the top of the body portion at both sides of the bolster line and having an upstanding marginal flange and being adapted to bear against the bottom and a side face of a sill;

14. In a draft arm, in combination, a body portion adapted to extend on both sides of a car bolster, and reinforcing member detachably secured to the top of the body portion at both sides of the bolster line and having upstanding marginal flanges and being adapted to "bear against the bottom and side facesof a sill.

15. In car underf-raming, the combination with Wood center sills and body bolster, of a draftarm extending from in front of to a point back of the bolster and having an integral abutment on the top "thereof inter- 130.

' mediate the end sill of the car and the body abutment to said angle iron and thereby rebolster, and an angle iron secured to one of lieving the connection between the angle 10 said center sills, said iron extending from a iron and said. draft arm. point at the rear of the body bolster to and 5 engaging said draft arm abutment, the HENRY WRIGLEY angle iron and draft arm being rigidly con- Witnesses: Y nected whereby bufling shocks are transmit- E. M. KLATGHER, ted from the draft arm partly through said R. RINGLE.

Copies 01 this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C. 

